Siemens RFBB / RFA Pipeline Compressors

Pipeline power from Rolls Royce Energy

Six different models of pipeline compressors are offered with a choice of axial or conventional opposed inlets. Aerospace assembly techniques provide ease of maintenance with full removal causing no disturbance to the main piping. Pipeline compressors are the preferred choice for the large flow rates required by natural gas transmission applications.

The pipeline compressor aerodynamic performance has been refined to the point where conventional side inlet compressors offer up to 89 percent polytropic efficiency and the axial inlet RFA36 achieves up to 91 percent. Each compressor receives custom aerodynamic engineering of the entire gas path.

With flange sizes ranging from 508mm (20 inches) to 1,067mm (42 inches) our conventional side inlet pipeline compressors can accommodate up to five stages of compression although only one or two stages are usually required for pipeline transmission duty.

The axial inlet RFA36 is the most efficient pipeline compressor in service featuring horizontal discharge and a single-stage, spherically shaped cast casing. Compact and rugged, the RFA36 weighs only two-thirds as much as a conventional pipeline compressor.

Pipeline Centrifugal Compressors Model List
Model Max Working Pressure
psig (bar)
Max Flange Size
inches (mm)
Number of Stages Max Power
BHP (kW)
Design Speed Range Impeller Diameter inches (mm) Max Design Inlet Flow
acfm (m3h)
RFBB-20 1800 (124) 20 (510) 1 – 4 20,000 (14,900) 9,000 – 13,800 10 – 26 (250 – 660) 12,700 (21,600)
RFA-24 1800 (124) 24 (610) 1 20,000 (14,900) 9,000 – 13,800 12 – 26 (305 – 660) 30,800 (52,300)
RFBB-30 3200 (222) 30 (760) 1 – 5 75,000 (56,000) 3,600 – 8,000 20 – 35 (508 – 889) 25,300 (43,000)
RFBB-36 2250 (155) 30 (760) 1 – 5 75,000 (56,000) 3,600 – 6,666 24 – 51 (610 – 1,295) 45,400 (77,100)
RFA-36 1800 (124) 900 (62) 1 50,000 (37,300) 3,600 – 6,800 24 – 51 (610 – 1,295) 60,500 (102,800)
RFBB-42 1500 (105) 1595 (110) 1 – 5 75,000 (56,000) 3,600 – 6,666 24 – 51 (610 – 1,295) 62,800 (106,500)
Barrel Centrifugal Compressors Model List
Model Max Working Pressure (psig / bar) Max Inlet Max Discharge Number of Stages Max Power (BHP/ kW) Design Speed Range Impeller Diameter (inches / mm) Max Design Inlet FLow
RBB 4500 (310) 16 (405) 12 (305) 1 – 9 35,000 (26,100) 8,000 – 13,800 12 – 17 (305 – 432) 6,000 (10,200)
RCB 3220 (222) 20 (508) 16 (406) 1 – 9 50,000 (37,300) 5,000 – 11,500 18 – 22 (458 – 560) 13,500 (23,000)
RDB 2000 (140) 30 (762) 20 (508) 1 – 9 60,000 (44,700) 4,500 – 8,500 24 – 48 (610 – 711) 22,000 (37,000)
REB 1200 (85) 30 (762) 20 (508) 1 – 9 75,000 (56,000) 3,500 – 6,500 28 – 34 (711 – 863) 35,500 (60,300)